Advertisements
Advertisements
प्रश्न
Black marks appearing on the ceiling above a lamp or fan caused by dust being carried upwards in the air are due to ______.
रिक्त स्थान भरें
उत्तर
Black marks appearing on the ceiling above a lamp or fan caused by dust being carried upwards in the air are due to convection currents.
shaalaa.com
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?